â¦epithelial (covering) layer, called the blastoderm, enclosing a fluid-filled cavity, the blastocoel. After the blastula develops, it undergoes transition to the gastrula (q.v.), a process called gastrulation.
Child neglect (also called psychological abuse) is commonly defined as a failure by a child's caretaker to meet a child's physical, emotional, educational, or medical needs.
Child abuse is any emotional, sexual, or physical mistreatment, as well as neglect of a child. Some countries may vary in their definition of the term.